Illinois Severe Flash Flood Warning | Effective 06/21/2026 14:06

Headline: 
Flash Flood Warning issued June 21 at 4:06PM CDT until June 21 at 7:00PM CDT by NWS Lincoln IL
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
June 21, 2026 - 2:06pm
Expires: 
June 21, 2026 - 5:00pm
Description: 
FFWILX The National Weather Service in Lincoln has issued a * Flash Flood Warning for... Western Cumberland County in east central Illinois... Northern Effingham County in south central Illinois... * Until 700 PM CDT. * At 405 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Effingham, Neoga, Altamont, Teutopolis, Montrose and Effingham County Airport. This includes the following highways... Interstate 70 between mile markers 79 and 107. Interstate 57 between mile markers 155 and 168...and between mile markers 172 and 180.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Area Description: 
Cumberland, IL; Effingham, IL
Forcast Office: 
NWS Lincoln IL